MC14555B, MC14556B
Dual Binary to 1-of-4
Decoder/Demultiplexer
The MC14555B and MC14556B are constructed with
complementary MOS (CMOS) enhancement mode devices. Each
Decoder/Demultiplexer has two select inputs (A and B), an active low
Enable input (E), and four mutually exclusive outputs (Q0, Q1, Q2,
Q3). The MC14555B has the selected output go to the “high” state,
and the MC14556B has the selected output go to the “low” state.
Expanded decoding such as binary–to–hexadecimal (1–of–16), etc.,
can be achieved by using other MC14555B or MC14556B devices.
Applications include code conversion, address decoding, memory
selection control, and demultiplexing (using the Enable input as a data
input) in digital data transmission systems.
http://onsemi.com
MARKING
DIAGRAMS
16
PDIP–16
P SUFFIX
CASE 648
MC1455XBCP
AWLYYWW
1
16
SOIC–16
D SUFFIX
CASE 751B
1
16
SOEIAJ–16
F SUFFIX
CASE 966
1
MC1455XB
AWLYWW
1455XB
AWLYWW
•
•
•
•
•
•
Diode Protection on All Inputs
Active High or Active Low Outputs
Expandable
Supply Voltage Range = 3.0 Vdc to 18 Vdc
All Outputs Buffered
Capable of Driving Two Low–Power TTL Loads or One Low–Power
Schottky TTL Load Over the Rated Temperature Range
MAXIMUM RATINGS
(Voltages Referenced to V
SS
) (Note 2.)
Symbol
V
DD
V
in
, V
out
I
in
, I
out
P
D
T
A
T
stg
T
L
Parameter
DC Supply Voltage Range
Input or Output Voltage Range
(DC or Transient)
Input or Output Current
(DC or Transient) per Pin
Power Dissipation,
per Package (Note 3.)
Ambient Temperature Range
Storage Temperature Range
Lead Temperature
(8–Second Soldering)
Value
– 0.5 to +18.0
– 0.5 to V
DD
+ 0.5
±
10
500
– 55 to +125
– 65 to +150
260
Unit
V
V
mA
mW
X
= Specific Device Code
A
= Assembly Location
WL or L = Wafer Lot
YY or Y = Year
WW or W = Work Week
ORDERING INFORMATION
Device
MC14555BCP
Package
PDIP–16
SOIC–16
SOIC–16
SOEIAJ–16
SOEIAJ–16
PDIP–16
SOIC–16
SOIC–16
SOEIAJ–16
SOEIAJ–16
Shipping
2000/Box
48/Rail
2500/Tape & Reel
See Note 1.
See Note 1.
2000/Box
48/Rail
2500/Tape & Reel
See Note 1.
See Note 1.
°C
°C
°C
MC14555BD
MC14555BDR2
MC14555BF
MC14555BFEL
MC14556BCP
MC14556BD
MC14556BDR2
MC14556BF
MC14556BFEL
2. Maximum Ratings are those values beyond which damage to the device
may occur.
3. Temperature Derating:
Plastic “P and D/DW” Packages: – 7.0 mW/
_
C From 65
_
C To 125
_
C
This device contains protection circuitry to guard against damage due to high
static voltages or electric fields. However, precautions must be taken to avoid
applications of any voltage higher than maximum rated voltages to this
high–impedance circuit. For proper operation, V
in
and V
out
should be constrained
to the range V
SS
(V
in
or V
out
)
V
DD
.
Unused inputs must always be tied to an appropriate logic voltage level (e.g.,
either V
SS
or V
DD
). Unused outputs must be left open.
v
v
1. For ordering information on the EIAJ version of
the SOIC packages, please contact your local
ON Semiconductor representative.
©
Semiconductor Components Industries, LLC, 2000
1
March, 2000 – Rev. 3
Publication Order Number:
MC14555B/D
ONSEMI [ ON SEMICONDUCTOR ]
